Biggs, Norman. <br/><br/>
Discrete mathematics. 

 - Revised edition. 
 - Oxford :  OUP,  1985. 
 - xiv, 480p ;  24cm. 
<br/><br/>Includes index. 
<br/><br/> Open. 
<br/><br/><label>ISBN: </label>0198534272 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer science--Mathematics.